/*
 * DG (DG Gaming Engine)  - Server
 * Copyright (C) 2005  Bob Marks (marksie531@yahoo.com)
 * http://code.google.com/p/dng-gaming
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package com.dg.gaming.server.data.xml;

import java.util.*;

import com.dg.gaming.api.common.*;
import com.dg.gaming.api.common.util.*;
import com.dg.gaming.server.data.*;
import org.dom4j.*;

/**
 * Class for inflatting / deflatting between XML and POJO.
 *
 * FIXME - PUSH UP??? OR USE REFLECTION???
 *
 * @author Bob Marks
 * @version Alpha 0.2.3
 */
public class GameInfoXML {

    // XML element / attribute names
    private static final String XML_ELM_GAME_INFO = "gameinfo";
    private static final String XML_ATT_PLAYERS = "players";
    private static final String XML_ATT_RESULTS = "results";
    private static final String XML_ATT_START_TIME = "st";
    private static final String XML_ATT_END_TIME = "et";
    private static final String XML_ATT_SCORE = "score";
    private static final String XML_ATT_HISTORY = "history";

    /**
     * inflate method which return
     *
     * @param game    Game type.
     * @param element Element.
     */
    public static GameInfo inflate(String game, Element element) {
        // Check this is the correct element
        if (!element.getName().equals(XML_ELM_GAME_INFO)) {
            return null;
        }

        // Read values from element into java primitives
        String players = element.attributeValue(XML_ATT_PLAYERS);
        String results = element.attributeValue(XML_ATT_RESULTS);
        Date startTime = DGUtils.readDate(
                element.attributeValue(XML_ATT_START_TIME),
                IGame.DATE_FORMAT_FULL);
        Date endTime = DGUtils.readDate(
                element.attributeValue(XML_ATT_END_TIME),
                IGame.DATE_FORMAT_FULL);
        String score = element.attributeValue(XML_ATT_SCORE);
        String history = element.attributeValue(XML_ATT_HISTORY);

        // Create game information object.
        return new GameInfo(
                game, players, results, startTime, endTime, score, history);
    }

    /**
     * Method for flattening a GameInfo object into an XML element.
     *
     * @param gameInfo   Game information object.
     * @return           XML (dom4j) version of Game info object.
     */
    public static Element flatten(GameInfo gameInfo) {
        Element elm = DocumentHelper.createElement(XML_ELM_GAME_INFO);

        elm.addAttribute(XML_ATT_PLAYERS, gameInfo.getPlayers());
        elm.addAttribute(XML_ATT_RESULTS, gameInfo.getResults());
        elm.addAttribute(XML_ATT_START_TIME,
                         DGUtils.valueOf(gameInfo.getStartTime(),
                                         IGame.DATE_FORMAT_FULL));
        elm.addAttribute(XML_ATT_END_TIME,
                         DGUtils.valueOf(gameInfo.getEndTime(),
                                         IGame.DATE_FORMAT_FULL));

        elm.addAttribute(XML_ATT_SCORE, gameInfo.getGameScore());
        elm.addAttribute(XML_ATT_HISTORY, gameInfo.getGameHistory());

        return elm;
    }
}
